I am starting a new website with articles about wordpress, photoshop tutorials and some more, but i have a few questions. 1) Would i need a new domain or a domain that has been expired, and what are the factors to look in then, DA and PA what is better for seo ? 2) Would writing 500 -700 word articles with 5 - 10 seo friendly images be enough to rank the article / website or is more needed ? 3) Would adding 3 - 5 articles a day be seen as to much content at once ? 4) What is the most important factor for SEO if putting only articles on a website, the on-page optimization or backlinks ?